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Diss Factsheets
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EC number: 274-778-7 | CAS number: 70693-62-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- 2007-07-10
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: It is not a REACH requirement. The estimation is submitted for sake of completeness.
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- model calculation according to the Atkinson calculation method
- GLP compliance:
- no
- Estimation method (if used):
- The photochemical and oxidative decompositions of Potassium peroxomonosulfate and Caro’s acid in air are calculated according to Atkinson.
The calculation is performed with the help of the programme AOPWIN, Atmospheric Oxidation Programme v1.92 for (© 2000 US Environmental Protection Agency). - Light source:
- not specified
- Details on light source:
- not indicated
- Details on test conditions:
- not indicated
- Reference substance:
- not specified
- Preliminary study:
- not indicated
- Test performance:
- not indicated
- Results with reference substance:
- not indicated
- Validity criteria fulfilled:
- yes
- Conclusions:
- Potassium peroxomonosulfate and Caro’s acid degrade in the atmosphere with a DT50 value of 4.011 days (24-hr day; corresponding to 96.264 hours) and 3.875 days (24-hr day; corresponding to 93.009 hours), respectively. As both substances contain no olefinic carbon-carbon double and acetylic triple bonds, they are not expected to react with ozone.
- Executive summary:
Materials and methods
The photochemical and oxidative decompositions of Potassium peroxomonosulfate and Caro´s acid in air are calculated according to Atkinson.
Results and discussion
Reaction rate constant
Potassium peroxomonosulfate kOH = 4.0000 × 10-12 cm3 molecule-1 sec-1
Caro´acid (Peroxysulfuric acid) kOH =4.1400 × 10-12 cm3 molecule-1 sec-1
Tropospherical half life
The DT50 for Potassium peroxomonosulfate and Caro´s acid are estimated to be 4.011 days (24-hr day; corresponding to 96.264 hours) and 3.875 days (24-hr day; corresponding to 93.009 hours), respectively.
Reference
OH radical reaction rate constant kOH
The overall OH rate constant is estimated to be:
Potassium peroxomonosulfate kOH = 4.0000 × 10-12 cm³ molecule-1 sec-1
Caro´acid (Peroxysulfuric acid) kOH =4.1400 × 10-12 cm³ molecule-1 sec-1
Ozone reaction rate constant kOzone
As both substances contain no olefinic carbon-carbon double and acetylic triple bonds, Potassium peroxomonosulfate and Caro´s acid are not expect to react with ozone.
Atmospheric half-life using
kOH
The tropospherical half life can be calculated using the following relation: t1/2 = ln2/kOH x [OH] with [OH] being the OH radicals concentration in the troposphere of 0.5 x 106 molecule cm³ considering 24 hours irradiation per day.
The DT50 for Potassium peroxomonosulfate and Caro´s acid are estimated to be 4.011 days (24-hr day; corresponding to 96.264 hours) and 3.875 days (24-hr day; corresponding to 93.009 hours), respectively.
Atmospheric half-life using kOzone
No ozone reaction is estimated (Potassium peroxomonosulfate and Caro´s acid contain no olefinic carbon-carbon double and acetylic triple bonds)
Description of key information
The photochemical and oxidative decompositions of Potassium peroxomonosulfate and Caro´s acid in air are calculated according to Atkinson.
Potassium peroxomonosulfate kOH = 4.0000 × 10-12 cm3 molecule-1 sec-1
Caro´acid (Peroxysulfuric acid) kOH =4.1400 × 10-12 cm3 molecule-1 sec-1
Tropospherical half life
The DT50 for Potassium peroxomonosulfate and Caro´s acid are estimated to be 4.011 days (24-hr day; corresponding to 96.264 hours) and 3.875 days (24-hr day; corresponding to 93.009 hours), respectively.
Key value for chemical safety assessment
- Half-life in air:
- 4.011 d
- Degradation rate constant with OH radicals:
- 0 cm³ molecule-1 s-1
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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